ogma-core: Remove incorrect function declaration from template. Refs #240.

[ivanperez-keera]

Remove incorrect mention of an undefined function split from the cFS template, as prescribed in the solution proposed for #240 .

[ivanperez-keera]

Change Manager: Verified that:

• Solution is implemented:
  • The code proposed compiles and passes all tests. Details:
    • Build logs:
      • https://github.com/nasa/ogma/actions/runs/13147612907/job/36689040020
      • https://github.com/nasa/ogma/actions/runs/13147612906/job/36689039965
    • Build log archives:
      • logs_33946481777.zip
      • logs_33946481778.zip
  • The solution proposed produces the expected result. Details:
    The following Dockerfile checks that the function split is no longer mentioned in the cFS app in the template, after which it prints the message "Success":

    FROM ubuntu:focal
    
    RUN apt-get update
    
    RUN apt-get install --yes git
    
    SHELL ["/bin/bash", "-c"]
    CMD git clone $REPO \
        && cd $NAME \
        && git checkout $COMMIT \
        && ! grep -nHre '\<split\>' --include='*.h' --include='*.c' ogma-core/templates \
        && echo "Success"

    Command (substitute variables based on new path after merge):

    $ docker run -e "REPO=https://github.com/ivanperez-keera/ogma" -e "NAME=ogma" -e "BASE_COMMIT=develop" -e "COMMIT=351cb199ee73385f1cb7e6d76d50833ae5470894" -it ogma-verify-240
    

• Implementation is documented. Details:
  No updates needed; the change removes outdated code.
• Change history is clear.
• Commit messages are clear.
• Changelogs are updated.
• Examples are updated. Details:
  No updates needed; the change removes outdated code.
• Author is internal or has provided signed CLA.
• Required version bumps are evaluated. Details:
  Bump not needed; the change removes outdated code that wasn't needed.